An "Exchange Zone" is displayed at the 77th Street Police Station on June 29, 2017 in Los Angeles, the United States. Los Angeles Police Department on Tuesday unveiled an ``e-commerce exchange zones'' program in which people who buy or sell items via internet sites such as Craigslist may conduct the transactions in the lobbies of nine police stations. The transactions can occur seven days a week at all hours, and will be conducted in the lobby areas only. No firearms or illegal items will be allowed. (Photo by Ringo Chiu)

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